I am on my phone so sorry I can't give you a more thorough example but...
What you want is to call a function with the family UID as the parameter when a collision is detected.
So it should look something like...
PsyAttacks on collision with ZombieFamily ---> Call function "zombieEffects"(ZombieFamily.UID)
And then create that function
On Function "zombieEffects"
ZombieFamily pick by UID (function.param(0)) ---> do fancy effects
Hope this helps